Automatic elevator-gate



N0. 6",!362. Patented 061:. 4, I898.

A. TURNER.

AU'TOMATlG' ELEVATOR GATE.

(Application filed Ma a, 1898.) (No Model.) 2 Sheets-Sheet l.

N0. 6H,662." Patented Oct. 4, I898. A. TURNER.

AUTOMATIC ELEVATOR GATE.

' (Application filed May 9, 1898.) (No Model.) 2 Sheeis-$heet 2- Wztnesxea, y 2 V 3 {if/W 9 WW M m: NORRIS PETERS 2:0,. Puma-Limo WASHXNGTON. n. c.

ALLEN TURNER, OF KANSAS CITY, MISSOURI.

AUTOMATIC ELEVATOR-GATE.

SPECIFICATION forming part of Letters Patent No. 611,662, dated October 4, 1898.

Application filed May 2,1898. Serial No. 679,532. (No model.)

To (l/ZZ whom it may concern.-

Be it known that I, ALLEN TURNER, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and use ful Improvements in Automatic Elevator- Gates; and I do hereby declare that the following is a full, clear, and exact description of the invention, such as will enable others to make and use the same, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to that class of elevator-gates which are operated by the ascending and descending elevator-car; and it has for its objects, first, the increased velocity of the cable-winding pulley for the gate-elevating ropes; second, to compensate the weight of the gate and release the tension upon the gate-operating ropes; third, the adj ustability of the operating-cam upon the elevator-car, and, fourth, the prevention of lateral vibration of the pivotal bar operated'by the cam on the car. a

My invention consists in the novel construction and combination of parts, such as will be first fully described, and specifically pointed out in the claims.

In the drawings, Figure 1 is a View in perspective of an elevator-hatchway, showing the elevator-car and the improved mechanism for raising and lowering the elevatorgates. Fig. 2 is a side view in detail of a portion of the hatchway with the elevatorcar removed and the gate in a closed position, showing the gate-operating mechanism in the hatchway. Fig. 3 is a detail view, in vertical section, of the pulley-supporting bracket and the pulley for the separate gate-operating ropes, showing also the small grooved pulley forming part of the large pulley in the supporting-beam of the hatchway. Fig. at is a rear view in elevation of the pivoted bar, which is operated by the cam on the elevatorcar, with portions of the bar broken away. Fig. 5 is a cross-sectional view of the bar upon the line a: or of Fig. 4.

Similar letters of reference indicate corresponding parts in all the figures.

In the drawings, to which reference is now made, A represents the hatchway as ordinarily provided in buildings for an elevatorcar.

B B represents the separate floor-landings.

b b are the vertical corner-posts which are upon one side of the hatchway, and b b the corner-posts upon the other side of the hatchway.

b b b b are the horizontal connectingbeams to the corner-posts at the level of the floor-1anding B, and b b b" Z1 at the level of the floor-landin g B.

b is an elevator guide-beam between the corner-posts 1) b and b the guide-beam be: tween the corner-postsb 6 Upon the inner side of the beam b is a longitudinal guiderail Z1 and upon the inner side of the beam 12 is a guide-rail Z2 In the sides of the corner-posts Z2 Z2 which are opposite each other is a groove b and in the corresponding side of the corner-posts b b is a groove t which extends in the longitudinal direction of said posts. Between the corner-posts b b and in the respective grooves b is'a vertically-sliding gate 0, and in the groove t in the cornerposts I) b is a sliding gate 0.

D represents the elevator car or cage, cl (1 are upright side beams of the car, and cl is the platform, connected with the lower ends of said beams. In the side of the beam cl opposite the beam 12 is avertical groove (V, which receives the guide-rail b on the said guide-beam b In the side portion of the beam at opposite the beam 6 is a vertical groove which receives the guide-rail Z1 on the beam 12 7 With the inner side portion of the cornerpost b toward the beam 19 at a point a little less than one-third the described distance from the level of the floor-landin g Btoward the floor-landing B above, is connected one end of a stationary bar E, the other end of which bar is connected with the guide-beam b. On

one side of bar E is a longitudinal plate e, and upon the other side of said bar is a plate e. (See Fig. 3.)

With the inner side portion of the cornerpost 19 in line with the outer side portion thereof, is connected a bracket F, which extends toward the beam 19 and is a short distance above the plane of the bar E. With the inner side portion of the bracket F is rigidly connected, by means of the bolts 9 g, the plate 9, upon which is a journal 9 Upon the journal g is a rope-winding pulley G, and between said pulley and the plate g is a small-sized pulley 9 which is upon the side and is a part of the inner side of the said pulley G.

With the periphery of the pulley G is connected fixedly the separate ropes g g one of said ropes g extending from the pulley G, outside of the beam 1), toward the cornerpost I), over a pulley g in fixed bearings on the outer side portion of the said corner-post b, a short distance below the plane of the floor-landing B, thence over a sheave g connected with the horizontal connecting-beam 0 upon the level of the floor-landing B, and attached to the sliding gate 0. The other rope 9 extends from pulley G around the outside portion of the corner-post b and over a pulley g on said corner-post, and thence to a sheave g on the inner side portion of the connecting-beam b", and attached to the gate 0.

Extending from the upper side portion of the bracket F to the under side portion of the beam 12 are separate guide-rods f f, on which guide-rods is a sliding weight F With the sliding weight F is connected one end of a rope f and the other end extended over a sheave f on the under side of the beam 19 on the floor-level B, thence downwardly and connected with the side of the pulley G opposite to the side with which the rope g is connected.

Vith the upper side portion of the beam 19 beneath the bar E and equidistant from the corner-post b and the guide-beam b", is connected the vibrating bar H. The lower end of the bar H is extended within a socket h, upon the upper side portion of which socket is a flange h, throughwhich flange and the bar H extend the securing-bolts 7Z2. Upon the lower end of the socket h is a lug h, which is connected, by means of the pivot 72/, with a bracket-plate 7L5, secured to the connectingbeam 19 In the upper end portion of the bar H is a slot h within which slot is a bar h, secured by the bolts Z2 to the bar H, the inner side portions of which slot are corrugated. The end of the bar It is also corrugated, as at h to fit and be clamped within the slot in the upper end of bar H. (See Fig. 4:.) The upper end portion of the bar It is in two separate parts h h or forked, which forked ends extend on opposite sides of the bar E. A short distance above the upper side portion of said bar E and between the forked ends h h is a cylindrical block 71 and through the forked ends of the bar I'I extends a pin h, which is secured fromrotation within the said ends. The block 72, is prevented from rotating by the screw-bolt 71, which impinges upon the pin 71, In the block h is a groove 71 with which block is connected in groove 7L one end of a rope h, the other end of which rope is wound once about the pulley g on the pulley G and connected with said pulley. On the pin h on the outer side of the forked portion 71/9 of the bar H is an antifriction-roller h". On the inner side portion of the forked portion h of the vibrating bar II is a recess 6 in which is a spring-plate 6 which bears against the plate a 011 the side of the bar E. In the other forked portion h of the bar II is a spring-plate c in a recess in the said portion of the bar E in the same manner as the spring-plate c On the side of the beam 01 of the elevatorcar D toward the vibrating lever H are sepa rate adjustable bars 2' i in separate inclined planes, forming a variable cam I. The lower end of the bar 2' is pivotally connected with a lug 71 secured to the beam 61 near the upper surface of the platform (1 of the car D, near the outer side portion of said beam and in the path of the antifriction-roller h on the vibrating bar H. In the upper end portion of the bar t" is a slot 2' extending a short distance in the longitudinal direction of said bar, the under side portion of which bar in rear of the slot i is beveled at '5 Near the upper end of the beam d of the elevator-car is a lug which is the same as the lug 2' through which lug extends a guide-bolt i which bolt extends within the slot i of the bar 2'.

At a point on the beam 61 equidistant from the lugs 9L and 2' is a socket-plate 11", in which is a socket 1' in which socket is loosely extended one end of an externally-screw-threaded adj usting-bolt 1' upon which is a nut 2', which nut is turned against the socket 11 Upon the outer end of the bolt 1' is an in ternally-screw-threaded sleeve upon the upper side of which sleeve is a flange '5 with which is pivotally connected the lower end of the bar 2', and upon the under side of said sleeve is a flange 2'", with which is pivotally connected the upper end of the bar t'.

The devices heretofore explained for raising and lowering the elevator-gates 0 G which are connected with the hatchway and IIO above the floor level or landing B, are the same as described above the landing B. With the cross -beam (1 of the elevatorcar D is connected the elevatingcable d, which is connected with the usual elevating devices for raising and lowering the car.

In the operation of the improved mechanism it will be observed that in the position of the elevator-car as seen in Fig. 1 the gates C O are both in an elevated posit-ion, thus giving access to the elevator car from the sides of the hatchway, the upper end of the vibrating lever H being forced rearwardly in an inclined position and held in said position by the bars i i" of the variable cam I. 0011- sequently the slack in the ropes g 9 connected with the gates C C, is wound upon the pulley G. At the same time the compensating weight F is in a position near the ceiling-line under the floor-landing B and the rope f wound around the pulley G. The moment the elevator-car D is given an upward movement the antifriction-roller h moves over the inclined plane of the bar it of the cam I and the gates C O by their own weight descend, causing the pulley G to rotate and pay out the ropes and wind the rope 71 upon the pulley g and consequently the tension upon the vibrating bar I-I draws the upper end of the said bar forward and in the direction of the guide-beam 22 As soon as the elevator-car has passed one-half the distance to the upper floor-landing B the vibrating bar I-I passes from the cam I and the gates O O are in the lowest position required to close the hatchway, and at the same time the weight F descends. Above the floorlanding B the gates C C are in a closed 'position 7 until the bar 7," of the variable cam I on the elevator-car comes into contact with the antifriction-roller upon the vibrating bar II, and the gates C O are caused to move upwardly, reaching their highest point as the platform d of the elevator-car D reaches the level of the floor-landing B. The vibrating bar II raises the gates by the purchase of the. rope h on the pulley 9 Both pulleys G 9 being upon the same journal or pivot, a combined movement is communicated to the pulley G. The weight of the weight F is very nearly that of the gates, so that it is only necessary to raise a weight equal to the slight difference between the weight of the weight F and that of the gates. I may,ihowever, dispense with the weight F where a smallsized gate is in use.

In-order to regulate the height to which the elevator-gates are to' be raised by the gateoperating mechanism, the nut 2' on the threaded bolt 2' is turned so as to permit the meeting ends of the bars 2' i of cam I to be moved or adjusted in position toward the beam 61 of the elevator-car, so as to lessen in degree the angle of the cam and also prevent the shock in the striking of the antifrictionroller 7L" on the vibrating bar II with the inclined planes of the cam.

The corrugated inner side portions of the slot h on the upper end'of' bar II and the similar corrugations 011 the bar 7L6 strengthen the joint, so that the shock to the joint can be better sustained when the roller 72, strikes the cam on the elevator-car, and the forked end of the said bar upon the horizontal guidebar prevents the lateral sway of the bar from its position in the path of the cam.

I am aware of the Letters Patent to G. O. Hawkins, No. 517,117, dated March 27, 1894. In his invention the elevator-gate whenever operatedis raised its full height. In my invention I aim to control the height to which the gate is elevated in the passage of the elevator-car, and thus raise the gate only part way from the level of the floor toward the upper floor landing and not expose more. of the hatchway-openin g than is actually necessary.

IIaving fully described my invention, what I now claim as new, and desire to secure by Letters Patent, is

1. In a hatchway, a sliding elevator-gate, and an elevator-car, a cam upon the side of the elevator-car, elevating devices upon the side of the hatchway connected with the elevator-gate, and a vibrating bar pivotally connected at its lower end with a suitable hearing upon the side of the hatchway, and also connected with the gate-elevatin g devices, an elevator-car and separate bars, on separate inclined planes upon said car pivotally connected with each other at the meeting ends, an adjusting screw-threaded bolt and anadjusting-nut upon said car for the meeting ends of said bars and connecting devices upon said car for the outer ends of the respective bars for the purpose described.

2. In a hatchway, a sliding elevator-gate, a pivoted vibrating bar in said hatchway, and combined pulleys of different size upon a j ournal, in the side of the hatchway, a rope connected with one periphery of the combined pulley, and also with said sliding gate, and another rope connected with the vibrating bar and the periphery of the other pulley, an antifriction device on said vibrating'bar, an elevator-car, lugs on said car and separate bars in separate inclined planes, pivotally connected with each other at one end and adj ustably connected with said lugs at the other end, and in the path of the antitriction device in the said pivotal vibrating bar, and an adjusting screw-bolt upon the elevator-car, for the meeting ends of said inclined bars, for the purpose described.

3. In a hatchway a sliding elevator-gate and an elevator-car, a cam upon the side of the elevatoncar, elevating devices upon the side of the hatchway connected with the elevator-gate and a vibrating bar pivotally connected at its lower end with a suitable fixed bearing upon the side of the hatchway and also connected with the gate-elevating devices and having a forked upper end, a horizontal stationary guide-bar upon the side of the hatchway adapted to receive the forked end of the said vibrating bar and antifriiction devices upon the side of the forked upper end of the vibrating bar in the path of the cam upon said elevator-car for the purpose specified.

at. In a hatchway, a movable gate, and a horizontal stationary guide-bar, a vibrating bar pivoted at its lower end to afixed support in the hatchway, and separate pulleys varying in circumference on suitable fixed IIO bearings in the hatchway, operating-ropes with the large-sized pulley, and extending [0 connected with the larger pulley and extendover a suitable sheave and connected with ing over suitable sheaves and connected with said Weight, and stationary upright guides the 1gate and a second rope connecting the for said Weight, for the purpose described.

5 sma l-sized pulley with said vibrating bar,

an elevator-car and a cam on said car adapted ALLEN TURNER to come in contact with said vibrating bar in WVitnesses: its passage in the hatchway, and a compen- F. E. TURNER, sating Weight and a separate rope connected PETER ROBERTSON. 

